Saw-gummer



SAW GUMMER;

Patented Sept. 17, 1895.

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UNITED STATES- PATENT @Enron BENJAMIN C. BRADLEY AND GEORGE EWING, OFRIPLEY, TENNESSEE.

SAW-GUMMER.

SPECIFICATION forming part of Letters Patent No. 546,394, datedSeptember 17', 1895.

Application filed May 13, 1395. Serial No. 549,052. (No model.)

To all whom t may con/cern.-

Be it known that we, BENJAMIN C. BRADLE and GEORGE EWING, citizens ofthe United States, residing at Ripley, in the county of Lauderdale andState of Tennessee, have invented certain new and useful Improvements inSaw-Gummers; and we do hereby declare the following to be a full, clear,and exact description of our invention, suchfas will enable othersskilled in the art to which it appertains to make and use the same,reference being had to the accompanying drawings.

This invention is an improvement in sawgummers and is especially adaptedfor gumming crosscut-saws.

The objects of the invention are to provide a saW-gummer which may berigidly attached tothe saw at any point, and in which the reamer orcutting-tool may be adjusted to cut several teeth after the device hasonce been clamped to the saw without removing the parts.

The invention has for further objects to provide a saw-glimmer whichwill be easy of adjustment, readily operated, and of inexpensiveconstruction.

With these objects in view the invention resides in the various noveldetails of com struction, in the combination of the parts, and in thedevice as a whole.

The invention is illustrated in the accompanying drawings, in which likeletters of reference indicate corresponding parts.

In the drawings, to which reference is hereby made, Figure l is aperspective view ofthe device, showing itin position upon a crosscntsaw.Fig. 2 is a perspective view showing the device detached from the saw,and Fig. 3 shows the details of construction of some of the parts.

In the drawings, the letter A indicates a crosscut-saw, and B thesaw-gummer as a whole. The saw-gummer consists of an adjustablebifurcated clamp C, a bifnrcated brace D, an adjustable bifurcated clampE, a lever E secured to the clamp E by means of a thumbscrew or thelike, and the reamerarms G, the reamer H, and the cranks I.

The bifurcated clamp C, the bifurcated clamp E, and the reamersarrns Gare all provided with openin gs m arranged to correspond on the oppositeportions of each, and these openings are adapted to receive a bolt, athumb-screw, or the like. These openings are of any convenient distancefrom each other to facilitate adjustment of the parts to the saw.

The bifurcated brace D and the adjustable bifurcated clamp E areprovided with openings in their ends, the brace D having the saidopenings through the ends of its legs and the clamp E having an openingin its upper closed end, and a bolt K is passed through the saidopenings and also through any pair of openings, in the reamer-arms G,and has on its outer end a thumb-nut la. By means of the bolt K and thenut 7e, the brace D, the clamp E, andthe rentner-arms G are pivotallysecured to each other, with'the bolt K as a center and their adjustmentwith relation to each otherl and to the saw made easy.

The clamp C is bifurcated nearly its entire length in order to straddlethe saw-blade, the legs c being provided with the openings fm, oppositeeach other and adapted to receive a thumb-screw or the like n. When theclamp C straddles the saw-blade, as in Eig. 1, and the thumb-screw 'n istightened, the legs c are drawn toward each other and hold the clamp Crigidly to the saw. The clamp C has at its upper closed end ascrew-threaded projection c', which is adapted to receive the hand tapor nut L.

The brace D is provided with an opening CZ at its closed end, whichopening is sufficiently large to tit loosely over the screw-threadedprojection c of the clamp C. As shown in the drawings, this opening d isround, but it may beef any shape and perhaps its best construction wouldbe an elongated oval or slot, The nut L is adapted to press upon andlimit the movement ot the brace D.

The clamp E is adapted to tit easily over the saw-blade, its upperclosed end resting in one of the depressions between the teeth of thesaw. This-clamp E is not made rigid to the saw-blade by means ofthumb-screws or the like, as is the case with the clamp C, but theopenings min its legs are provided for the pivoting t0 it of the lever Fby means of a bolt orQthumb-screw, a number of such openings beingprovided so that saws of various Widths may be operated upon. This leverF is near its center pivoted to the clamp E by rco the thumb-screwf, andhas at oneend the raised portion f provided with a longitudinalv groovef2 on its face for the back of the saw to rest in. The other end of thelever has a screw-threaded vertical opening in it f3, adapted to receivethe screw f4, which has loose upon its upper end the restfi", providedwith forks f G to receive the back of the saw. By means of the lever Fthe clamp E may be held rmly to the saw-blade, the upper closed end ofthe clamp E resting in a depression between the teeth of the saw and thescrew to the saw-blade and the clamp E allowed tof rest in one of thedepressions between the l saw-teeth. The lever F is given a downward f4until the whole is tight.

or reamer is now adjusted to the portion of the saw to be gummed andheld in place by j depressing the brace Duntil it bears upon f theenlarged vends of the reamer-arms, holding it there by means of the handtap or nut L. The gumming of the next tooth necessitates the elevationof the brace D and the adjustment of the reamer-arms by means of thebolt K and theopenings m.

Having thus fully described our invention, what we claim as new, anddesire to secure by v Letters Patent, is-

1. In a saw-glimmer the combination with thereamer suitably mounted inadjustable arms, of an adjustable frame, adapted to be secured to a sawthe said frame consisting of a bifurcated clamp C, a bifurcated brace D,a bifurcated clamp Eand a lever F, all substan tially as and for thepurpose set forth.

2. In a saw-gummer the combination with 'the reamer arms of thebifurcated brace D adapted to rest upon the said reamer arms,

the said brace being held in position by the nut L substantially as andfor the purpose `set forth.

In testimony whereof we afix our signatures in presence of twowitnesses. pull upon the clamp E by turning the screw '7* Thecutting-tool i BENJAMIN C. BRADLEY.

GEORGE EWING.

Witnesses:

Jo C. MARLEY, JAMES OLDHAM.

